<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        img {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            display: block;
        }
    </style>
</head>

<body>
    <img src="http://localhost:3000/images/OIP-C.jpg" alt="">
    <h1>登录</h1>
    <form action="http://localhost:3000/dologin" method="post">
        <input type="text" name="username" placeholder="请输入用户名"><br>
        <input type="text" name="password" placeholder="请输入密码"><br>
        <input type="submit" value="登录">
    </form>
</body>

</html>